Accident High Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound entering at Laurel Rd (Antioch). On Ramp affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on July 29, 2026 at 3:03 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 29, 8:03 AM

Last Updated

22 hours, 15 minutes ago

Jul 29, 8:30 AM

Resolved

Jul 29, 2:45 PM

Coordinates

37.9760, -121.7424

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound entering at Laurel Rd (Antioch). On Ramp affected. Expect delays. Jul 29, 8:15 AM

Source: 511_sfbay · ID 511.org/1527826 First seen Jul 29, 2026 8:15 AM